研究成果リスト   

増渕覚                                      
Last Update 2015.12.1         




論文

42. “Imaging ballistic carrier trajectories in graphene using scanning gate microscopy”
  S. Morikawa, Z. Dou, S. Wang, C. G. Smith, K. Watanabe, T. Taniguchi, S. Masubuchi, T. Machida, and M. R. Connolly
  Applied Physics Letters 107, 243102 (2015)

41. “Edge-Channel Transport of Dirac Fermions in Graphene Quantum Hall Junctions”
  T. Machida, S. Morikawa, S. Masubuchi, R. Moriya, M. Arai, K. Watanabe, and T. Taniguchi
  Journal of the Physical Society of Japan 84, 121007 (2015)

40. “Vertical field effect transistor based on graphene/transition metal dichalcogenide van der Waals heterostructure”
  R. Moriya, T. Yamaguchi, Y. Inoue, Y. Sata, S. Morikawa, S. Masubuchi and T. Machida
  ECS Transactions 69, 357 (2015)

39. “Construction of van der Waals magnetic tunnel junction using ferromagnetic layered dichalcogenide”
  M. Arai, R. Moriya, N. Yabuki, S. Masubuchi, K. Ueno and T. Machida
   Applied Physics Letters 107, 103107 (2015)


38. “Electric field modulation of Schottky barrier height in graphene/MoSe2 van der Waals heterointerface”
  Y. Sata, R. Moriya, S. Morikawa, N. Yabuki, S. Masubuchi, and T. Machida
  Applied Physics Letters 107, 023109 (2015)

37. “Influence of the density of states of graphene on the transport properties of graphene/MoS2/metal vertical field-effect transistors”
  R. Moriya, T. Yamaguchi, Y. Inoue, Y. Sata, S. Morikawa, S. Masubuchi, and T. Machida
  Applied Physics Letters 106, 1233103 (2015)

36. “Edge-channel interferometer at the graphene quantum Hall pn junction”
  S. Morikawa, S. Masubuchi, R. Moriya, K. Watanabe, T. Taniguchi, and T. Machida
  Applied Physics Letters 106, 183101 (2015)

35. “Fabrication of 10-nm-scale nanoconstrictions in graphene using atomic force microscopy-based local anodic oxidation lithography”
  M. Arai, S. Masubuchi, K. Nose, Y. Mitsuda and T. Machida
  Japanese Journal of Applied Physics 54, 04DJ06 (2015)

34. “Modulation of Schottky barrier height in graphene/MoS2/metal vertical heterostructure with large current ON-OFF ratio”
  Y. Sata, R. Moriya, T. Yamaguchi, Y. Inoue, S. Morikawa, N. Yabuki, S. Masubuchi, and T. Machida
  Japanese Journal of Applied Physics 54, 04DJ04 (2015)

33. “Tunneling transport in a few monolayer-thick WS2/graphene heterojunction”
  T. Yamaguchi, R. Moriya, Y. Inoue, S. Morikawa, S. Masubuchi, K. Watanabe, T. Taniguchi, and T. Machida
  Applid Physics Letters 105, 223109 (2014)

32. “Large current modulation in exfoliated-graphene/MoS2/metal vertical heterostructures”
  R. Moriya, T. Yamaguchi, Y. Inoue, S. Morikawa, Y. Sata, S. Masubuchi, and T. Machida
  Applid Physics Letters 105, 083119 (2014)

31. “Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Strained-Ge/SiGe Quantum Well”
  R. Moriya, K. Sawano, Y. Hoshi, S. Masubuchi, Y. Shiraki, A. Wild, C. Neumann, G. Abstreiter, D. Bougeard, T.i Koga, and T. Machida
  Physical Review Letters 113, 086601 (2014)

30. “Cross-sectional transmission electron microscopy analysis of a single self-assembled quantum dot single electron transistor fabricated by atomic force microscope local oxidation”
  R. Moriya, E. Ikenaga, K. Shibata, K. Hirakawa, S. Masubuchi, and T. Machida
  Japanese Journal of Applied Physics 53, 045202 (2014)

29. “Mid-infrared photoresponse of graphene nanoribbon bolometer”
  M. Arai, M. Onuki, S. Masubuchi, R. Moriya and T. Machida
  Japanese Journal of Applied Physics 53, 035101 (2014)

28. “Fabrication and Characterization of High-Mobility Graphene p-n-p Junctions”
  S. Masubuchi, S. Morikawa, M. Onuki, K. Iguchi, K. Watanabe, T. Taniguchi, and T. Machida
  Japanese Journal of Applied Physics 52, 110105 (2013)

27. “Photovoltaic infrared photoresponse of the high-mobility graphene quantum Hall system due to cyclotron resonance”
  S. Masubuchi, M. Onuki, M. Arai, T. Yamaguchi, K. Watanabe, T. Taniguchi, and T. Machida
    Phys. Rev. B 88, 121402(R) (2013)

26. “Electrical spin injection into graphene through monolayer hexagonal boron nitride”
  T. Yamaguchi, Y. Inoue, S. Masubuchi, S. Morikawa, M. Onuki, K. Watanabe,   T. Taniguchi, R. Moriya, and T. Machida
  Applid Physics Express 6, 073001 (2013)

25. “Cross-sectional Transmission Electron Microscopy Analysis of Nanogap Electrode”
  R. Moriya, E. Ikenaga, S. Masubuchi, T. Machida
  Jpn. J. Appl. Phys. 52, 055201 (2013)

24.“Spin relaxation in weak localization regime in multilayer graphene spin valves"
   T. Yamaguchi, R. Moriya, S. Masubuchi, K. Iguchi,and T. Machida
   Jpn. J. Appl. Phys. 52, 040205 (2013)

23.“Boundary Scattering in Ballistic Graphene"
   S. Masubuchi, K. Iguchi, T. Yamaguchi, M. Onuki, M. Arai, K. Watanabe, T. Taniguchi, and T. Machida
   Phys. Rev. Lett. 109, 036601 (2011)

22.“Atomic Force Microscopy-based Local Tunable Oxidation of Graphene"
   S. Masubuchi, M. Arai, and T. Machida
   Nano Letters 11, 4542 (2011)

21.“Raman study on the interlayer interactions and the band structure of bilayer graphene synthesized by alcohol chemical vapor deposition"
   M. Okano, R. Matsunaga, K. Matsuda, S. Masubuchi, T. Machida, and Y. Kanemitsu
   Appl. phys. Lett. 99, 151916(2011)

20.Tunnel spin injection into graphene using Al­2O3 barrier grown by atomic layer deposition on functionalized graphene surface”
  T. Yamaguchi, S. Masubuchi, K. Iguchi, R. Moriya, and T. Machida
   J. Magn. Mag. Mater. 324, 849 (2011)

19.Observation of quantum Hall effect in mono- and bi-layer graphene using pulse magnet”
  S. Masubuchi, K. Suga, K. Kindo, S. Takeyama, and T. Machida
  Journal of Physics: Conference Series 334 012037 (2011)

18.Single-electron switching effect in graphene parallel-coupled double quantum dots”
   M. Arai, S. Masubuchi, and T. Machida
  Journal of Physics: Conference Series 334 012041 (2011)

17.Fabrication of single-electron transistor composed of a self-assembled quantum dot and nanogap electrode by atomic force microscope local oxidation”
   R. Moriya, H. Kobayashi, K. Shibata, S. Masubuchi, K. Hirakawa, S. Ishida, Y. Arakawa, and T. Machida
   Appl. Phys. Express 3, 08035001 (2010)

16.Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems”
   M. Kawamura, T. Yamashita, H. Takahashi, S. Masubuchi, Y. Hashimoto, S. Katsumoto, and T. Machida
   Appl. phys. Lett. 96, 032102 (2010)

15.“Fabrication of graphene nanoribbon by local anodic oxidation lithography using atomic force
   microscope”
   S. Masubuchi, M. Ono, K. Yoshida, K. Hirakawa, and T. Machida
   Appl. phys. Lett. 94, 082107-1-3 (2009)

14.“Observation of Half-Integer quantum Hall effect in single-layer graphene using pulse magnet ”
  S. Masubuchi, K. Suga, M. Ono, K. Kindo, S. Takeyama, and T. Machida
  J. Phys. Soc. Jpn. 77, 113707 (2008)

13.“Dynamic nuclear polarization and Knigaht shift measurements in a breakdown regime of integer
  quantum Hall effect”
  M. Kawamura, H. Takahashi,
S. Masubuchi, Y. Hashimoto, S. Katsumoto, K. Hamaya, and T. Machida
  Physica. E. 40, 1389-1391 (2008)


12Dynamic nuclear polarization in a quantum Hall corbino disk
  M. Kawamura, H. Takahashi, S. Masubuchi, Y. Hashimoto, S. Katsumoto, K. Hamaya, and T. Machida
  J. Phys. Soc. Jpn. Vol.77 No.2 023710-1-4 (2007)

11."Electrical coherent control of nuclear spins in a breakdown regime of quantum Hall effect"
  H. Takahashi, M. Kawamura, S. Masubuchi, K. Hamaya, T. Machida, Y. Hashimoto, S. Katsumoto
  Appl. Phys. Lett. 91, 092120-1-3 (2007)

10."Spin transport through a single self-assembled InAs quantunm dot with ferromagnetic leads"
  K. Hamaya, S. Masubuchi, M. Kawamura, T. Machida, M. Jung, K. Shibata, K. Hirakawa, T. Taniyama,
  S. Ishida, and Y.Arakawa   
  Appl. Phys. Lett. 90, 053108-1-3 (2007)

9."Spin-dependent nonlocal resistance in Si/SiGe quantum Hall conductor"
  K. Hamaya, K. Sugihara, H. Takahashi, S. Masubuchi, M. Kawamura,T. Machida, K. Sawano, and
  Y. Shiraki
  Phys. Rev. B 75, 033307-1-4 (2007)

8."Electrical polarization of nuclear spins in a breakdown regime of quantum Hall effect"
  M. Kawamura, H. Takahashi, K. Sugihara, S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys. Lett. 90, 022102-1-3 (2007)

7."Local detection of Knight shift around quantum-Hall edge channels using resistively- detected NMR"
  S. Masubuchi, K. Hamaya, and T. Machida
  phy. stat. sol.(C)3, 4268-4271 (2006)

6."Estimation of dynamic nuclear polarization in quantum-Hall devices using tilted magnetic fields"
  S. Masubuchi, K. Hamaya, and T. Machida
   phy. stat. sol.(C)3, 4284-4287 (2006)

5."Spin dependence of edge-channel transport in silicon-based quantum Hall system"
  K. Hamaya, S. Masubuchi, K. Sawano, Y, Shiraki, and T. Machida
  phy. stat. sol.(C)3, 4251-4254 (2006)

4."Gate-controlled nuclear magnetic resonance in an AlGaAs/GaAs quantum Hall device"
  S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys Lett. 89, 202111 (2006)

3."Knight shift detection using gate-induced decoupling of the hyperfine interaction in quantum
  Hall edge channels" 
  S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys Lett. 89, 062108-1-3 (2006)

2."Estimation of electrically-pumped dynamic nuclear polarization in quantum Hall device using titled
  magnetic fields "  
  S. Masubuchi, K. Hamaya, and T. Machida
  Jpn. J. Appl. Phys. 45, L522-L524 (2006)

1." Spin-dependent edge-channel transport in a Si/SiGe quantum Hall system"
  K. Hamaya, S. Masubuchi, K. Hirakawa, S. Ishida, Y. Arakawa, K. Sawano, Y. Shiraki, and T. Machida
  Phys. Rev. B 73, 121304R (2006)


解説記事

  1. 増渕覚、町田友樹、”原子間力顕微鏡によるグラフェンナノ構造の創製と量子輸送現象”、固体物理 45, 621 (2010).
  2. 町田友樹、増渕覚、小野雅司、荒井美穂、山口健洋、”ナノスケールグラフェン素子の作製と量子輸送現象”, J. Vac. Soc. Jpn. 53, 36 (2010).

表彰

 ・ 東京大学工学系研究科物理工学専攻優秀修士論文賞(田中賞)
 ・ 第33回応用物理学会講演奨励賞
 ・ 第26回ダイヤモンドシンポジウム優秀講演賞
 ・ Award for Encouragement of Research in Material Science, MRS-ICEM 2012


招待講演 

1.増渕覚、“高移動度グラフェンにおける量子輸送現象”、2012年第4回電界効果ワークショップ、東北大学 (2012)
2.増渕覚、“グラフェンナノ構造における量子輸送現象”、2012年度ニューダイヤモンドフォーラム研究会 (2012)
3.S. Masubuchi  "Atomic Force Microscopy Based Local Anodic Oxidation of Graphene", UK-Japan Workshop and Graphene Roadmap Consultation Graphene Synthesis and Charactarisation for applications, Lake District, UK, 15-18 November (2011).
4.町田友樹、増渕覚 “グラフェンナノデバイスの作製と量子輸送現象”、 2010年春季 第57回応用物理学関係連合講演会(東海大学)(2010)